As a consumer, I understand the need of a native app for something that is performance intensive or that requires a level of OS access that the website doesn’t provide. OTOH, in tired of everyone pushing apps that could easily be a website. I had an xfinity technician aggressively pushing me to install their xfi app when they came to install the service. They told me it was the only good way to configure the WiFi (!)…
But, I guess if you're paying for one for one of their all-in-one packages where the service is managing voip/streaming/tv/internet I guess I can see their equipment and management tool might be necessary. Wouldn't know, have avoided all that. Try to keep them just as an ISP.